package oop.day09;

public class TestMain {
    public static void main(String[] args) {
        Student s1 = null;
        //s1=new Student();
        //s1.study();

        Student s2 = new Student();
        s2.study();
        s2=null;
        String name="";
        System.out.println(name !=null && name.length()>0);


        
        
        
       Order o= new Order(3,5,7);
      // o.orderId=5;
        System.out.println(o.getOrderId());
        System.out.println(o.getCustomerId());
        System.out.println(o.getProductId());
        o.setOrderId(99);
        System.out.println(o.getOrderId());
    }
}
